[Feature] Bind health check server to localhost

[EchtkPvL]

I would like to be able to bind the health check server to localhost or disable it. As a workaround, I have set an invalid port, which causes the health check server to crash. This doesn't seem to have any side effects on the agent itself, but a configurable option would be the better solution.

# tail -fn+1 /var/log/monitoring-agent/monitoring-agent.log
[...]
2025/09/13 23:12:16 Health check server starting on port 80818
2025/09/13 23:12:16 Health check server error: listen tcp: address 80818: invalid port
2025/09/13 23:15:04 Found 54 Docker containers, collecting data

https://github.com/operacle/checke-server-agent/blob/main/agent/agent.go#L591

[tolaleng]

The server agent port is built into the binary package and works with the configuration system. Changing the default port requires adjusting related settings to ensure the service functions correctly. I’ll look into making the agent port customizable.

Anyway, if running the agent directly from the repository should work without any issues.